Galileo and Copernicus were two extremely influential astronomers. They believed in the heliocentric model of our solar system‚ or the idea that the planets revolved around the Sun. We all accept this model today as fact‚ but back in their time‚ the thought of it was pure blasphemy. The widely accepted idea at the time‚ as supported by the almighty Catholic Church‚ was the geocentric model. In this model‚ the Earth is central to nearly everything‚ and is orbited by the Sun‚ moon‚ and other special
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February 21‚ 2013 Where do planets come from? Abstract Astronomers have spent many centuries wondering how our solar system and its planets came to be. We could only see the end result of planet formation‚ not the process itself. And we had no other examples to study. Even with the knowledge gained about other solar system‚ we were left to wonder‚ are there other planetary systems out there‚ and did they form like ours? This project leads you to find out how mighty planets are formed from cosmic dust
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Ever since grade school you were taught that our solar system has nine planets. Sadly that is no longer the case; in 2006 astronomers have decided that Pluto no longer qualifies as a planet. Pluto is now considered a “Dwarf Planet” and has caused a lot of controversy among astronomers. A dwarf planet is not even considered to be a planet‚ and there are projected to be hundreds of them in our galaxy. Pluto is being demoted to what amounts as a third class citizen in our galaxy. Thousands of textbooks
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especially the geosciences‚ evolutionary biology‚ chemistry and bio-chemistry and astronomy. In the following report I focus on astrobiology as it applies to geology‚ or what kinds of planets‚ stars and solar systems are the most likely to play host to life in some form or another. Basic Assumptions Earth is the only planet in the universe we know supports life and the life indigenous to Earth is the only life we know of in the universe. Although it is possible‚ and in fact likely when considering
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Alien Planet Kepler-452b Our Milky Way Galaxy is filled with exoplanets—statistically speaking at least one for each of the hundreds of billions of stars in the galaxy. An astonishing finding is that the most common type of planet in our galaxy are those with sizes between those of Earth and Neptune. This has become a new class of planet that is neither terrestrial nor giant and one without an accepted theory for its formation. Planets on orbits between the hot planets and the cold planets are also
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Pluto is not a planet For my whole life I have been taught that there were exactly 9 planets in the solar system. I had learnt this at a very young age and the number 9 had often been stressed to me. I can’t believe the amount of tests that I had failed on the subject because I had failed to remember one of these planets. My excuse had always been‚ "No! That’s not a planet!". If I had forgotten Saturn then I would say‚ " Oh sir! Saturn’s not really a planet‚ it’s yellow and everyone knows that
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Is Our Atmosphere Unique? The planet Jupiter has the biggest atmosphere in our solar system. Jupiter’s atmosphere is composed of 90% hydrogen and 9.9% helium and .1% other gases such as sulfur‚ methane‚ ammonia‚ and water vapor. It is able to hold its atmosphere in because of its massive gravitational pull that is around 2.5 times stronger than earth’s pull. To put that into perspective‚ if you weigh 100 pounds on earth you would weigh 250 pounds on Jupiter. The atmospheric layers are the
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Could ’Goldilocks’ planet be just right for life? [->0][->1] AP Photo/Zina Deretsky‚ National Science FoundationAn artist rendering by Lynette Cook‚ National Science Foundation‚ shows the new planet on the right. · Top of Form 1 Buzz up!865 votes Bottom of Form 1 · HYPERLINK "http://www.facebook.com/sharer.php?u=http://news.yahoo.com/s/ap/20100929/ap_on_sc/us_sci_new_earths&t=Could+%27Goldilocks%27+planet+be+just+right+for+life%3F+-+Yahoo%21+News"Share · HYPERLINK "http://twitter.com/home
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Planetary Study Guide Mercury * As seen from Earth: * Orbital period of 88 days; rotation to orbit is a 3:2 ratio * Distance from Sun: 0.31 AU to 0.46 AU from the Sun * Eccentric orbit: close and far away (perihelion and aphelion) * 7 percent to the ecliptic * Visible by the naked eye just before sunrise or just after sunset (when the Sun’s light is blotted out) * Never far from the Sun * As a physical body: * Small (about 0.055 Earth’s
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THE PLANET MARS AND ITS INHABITANTS ESSAY: The Urides God Theory Eros Urides paints a very detailed picture of endless imagination in his short science fiction epic‚ “The Planet Mars and its Inhabitants‚” written in the 1920’s. Urides does this by creating a complex yet believable story line of how life on Mars could be in comparison to our planet Earth. Outlining key details‚ which we will cover in this essay‚ Urides explains to us
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